- Agon Light (Byte Attic)
eZ80-based open-source 8-bit microcomputer
- Ardent Tool
Comprehensive IBM ThinkPad and vintage IBM PC documentation, drivers, and technical information.
- Ben Eater Kits
Breadboard computer kits (6502, 8-bit CPU teaching)
- Heathkit Company
Vintage Heathkit manuals, kits (via collectors); new Heathkit kits
- IBM 1130 Site
Dedicated site for the IBM 1130 computing system with documentation, software, and restoration information.
- IBM 1401 Computer History
Computer History Museum's IBM 1401 restoration project with documentation, photographs, and operational details.
- Minus Zero Degrees
Extensive collection of vintage IBM computer documentation, including 5150, 5160, 5170 technical references, ROMs, and restore guides.
- Nosher Microcomputer Advert Archive
History of the microcomputer industry told through 300+ original adverts from the 1970s-1990s. Covers Commodore, Sinclair, Apple, IBM, and hundreds of now-forgotten brands.
- Retro Fusion
Online store specializing in retro tech, vintage computer parts, and new custom shells for bread-bin Commodore computers.
- TinkerDifferent
A forum and community for vintage tech enthusiasts to collaborate and share information about classic computers, primarily focusing on Apple products.